diff --git a/README.md b/README.md
index 3fb4bee..7240379 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,14 @@ Reccomended usage:
 
 `docker run -d -p 7777:7777 -p 7878:7878 -v /host/terraria_data/:/opt/terraria/tshock/ terraria`
 
+To enable RPC, *config.json* must be copied to `/host/terraria_data/`.
+
+Env vars
+--------
+
+* `WORLDSIZE` - default 1, can be 2 or 3 for small/med/large worlds
+* `WORLDFILENAME` - default "terraria.wld", name for the world save file
+
 Admin cli
 ---------
 
@@ -22,5 +30,5 @@ Per-run token generation:
 
 Execute arbitrary commads:
 
-* `trcli -a cmd -c '/protectspawn'
+* `trcli -a cmd -c '/protectspawn'v
 
diff --git a/config.json b/config.json
index 05630b2..f27752e 100644
--- a/config.json
+++ b/config.json
@@ -1,6 +1,5 @@
 {
   "RestApiEnabled": true,
   "RestApiPort": 7878,
-  "RestUseNewPermissionModel": true,
-  "ApplicationRestTokens": {}
+  "RestUseNewPermissionModel": true
 }
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